The BPF-F1250+ from Mini Circuits is a Band Pass Filter with Frequency 1050 to 1450 MHz, Center Frequency 1250 MHz, Insertion Loss 0.8 to 2 dB, Upper Rejection 20 to 30 dB, Lower Rejection 20 dB. Tags: Surface Mount, Lumped Component Filter. More details for BPF-F1250+ can be seen below.